iOS 7 parallax and Apple’s business strategy

If UIKit Dynamics is unpopular, developers won’t use it and it will be like it never existed because it doesn’t seem to be intrusive into the existing UIKit API (otherwise no existing apps could still work)

If UIKit Dynamics succeeds, users are delighted and Apple makes more money

Then Android developers (and maybe Windows 8 mobile developers if there are any) will be under pressure to add similar user experiences to their apps

Apple’s competitors still have way too much crap to fix in their own SDKs and are playing catch up all the time, so they won’t have a response (official API) for a long time

Meanwhile, app developers will do it themselves

By every app developer doing it themselves, they will create behaviors that feel very different between every different app, hence increasing the feeling of inconsistency and fragmentation across the eco-system which lowers the overall user-experience for end users as a whole

This will also making failthful porting from iOS to other platforms more difficult